{
  "$type": "site.standard.document",
  "description": "Provided is a separator which includes: a separator base including a porous polymer substrate having a plurality of pores, and a porous coating layer positioned on at least one surface of the porous polymer substrate and containing a plurality of inorganic particles and a binder polymer positioned…",
  "path": "/patents/1437275",
  "publishedAt": "2025-06-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B29C55/02",
    "LG CHEMICAL LTD [KR]"
  ],
  "textContent": "Provided is a separator which includes: a separator base including a porous polymer substrate having a plurality of pores, and a porous coating layer positioned on at least one surface of the porous polymer substrate and containing a plurality of inorganic particles and a binder polymer positioned on the whole or a part of the surface of the inorganic particles to connect the inorganic particles with one another and fix them; and a porous adhesive layer positioned on at least one surface of the separator base and including polyvinylidene-co-hexafluoropropylene containing vinylidene-derived repeating units and hexafluoropropylene-derived repeating units, wherein the ratio of the number of the hexafluoropropylene (HFP)-derived repeating units (HFP substitution ratio) based on the total number of the vinylidene-derived repeating units and the hexafluoropropylene-derived repeating units is 4.5-9%. An electrochemical device including the separator is also provided.",
  "title": "SEPARATOR AND ELECTROCHEMICAL DEVICE COMPRISING SAME"
}